3. Can the amortization of Intangible Assets like license use in Asset Module?

Can. Just maintain as usual like Tangible Asset (Fixed Asset).

For Intangible Asset (eg. goodwill, license), the amortization calculation is using straight line method can choose in the Asset Group. It is calculated by taking the difference between the cost of the asset and its anticipated salvage or book value and dividing that figure by the total number of years it will be used.